1
PSB251215
PSB 13,8V/1,5A enclosed switch
mode buffer power supply
Edition: 1 from 08.03.2012
Supercedes edition:
EN
Features of the power supply:
•
DC 13,8V/1,5A uninterruptible power supply
•
wide AC input voltage range 176÷264V
•
high efficiency 70%
•
controlling of battery charging and maintaining
•
protecting of battery against excessive
discharging (UVP)
•
battery charging current 0,5A
•
battery output is full protected against short-
circuit and reverse connection
•
LED optical signalisation
•
protections:
•
SCP short-circuit protection
•
OVP overvoltage protection
•
overvoltage protection (output AC)
•
overload (OLP)
1. Technical description.
1.1 General description.
Buffer-type power supply units are intended for continuous power supply to devices that require stabilised voltage
of 12 V DC (+/-15%). The power supply provides a voltage of U=13,8 V DC with an output current of I=1A+ 0,5A battery
charging.
In case of power voltage decay, prompt switching to battery supply occurs. The power supply has the
following protections: short-circuit (SCP), overload (OLP) and overvoltage (OVP).
Under normal operation, the total current drawn by the equipment may not exceed I = 1 A; Maximum
battery charging current: 0.5 A. Total device c battery: 1,5 A max.
1.2. Technical parameters.
Supply voltage
176÷264V AC 50Hz
Current consumption
0,35A@230VAC max.
Supply power
25W max.
Efficiency
70%
Output voltage
13,8V DC – buffer operation
9,5V÷13,8V DC – battery operation
Output current
1A + 0,5A battery charging
Output current t
AMB
<30°C
1A + 0,5A battery charging - refer to graph 1 .
Output current t
AMB
=40°C
0,7 A + 0,5A battery charging - refer to grap h 1.
Voltage adjustment range
12÷14V DC
Ripple voltage
120mV p-p max.
Battery charging current
0,5A max
Short-circuit protection SCP
electronic
Overload protection (battery) OLP
polymer fuse (PTC)
Overvoltage protection OVP
U>115% ÷ 150% of the output voltage, isolation of the
output voltage, atomatic recovery
Excessive discharge protection UVP
U<9,5 V (± 5%) – disconnection of battery
Optical signalisation
green LED- presence of AC voltage
Output of optical signalization
LED AC- presence of AC voltage
LED DC- presence of DC voltage on power supply output
Operation conditions
2-nd enviromental class, temperature: -10
o
C÷40
o
C
relative humidity 20%...90%, without condensation
Dimensions (LxWxH)
110 x 78 x 36 [mm]
Net/gross weight
0,28kg / 0,31kg
Protection class PN-EN 60950-1:2007
I (first) - requires a protective conductor (PE)
Connectors
power-supply:
Φ
0,63÷2,5 I/O PCB :
Φ
0,41÷1,63
battery output BAT: 6,3F-2,5/40cm,
output of optical signalization: plug 3-pin 5 mm
